Today at 12:00 PM, the PowerPC architecture has been dropped. It is not possible to upgrade Ubuntu 17.04 PowerPC anymore. All PowerPC ISOs have been deleted. You can still download some deb packages from http://ports.ubuntu.com/ubuntu-ports/ and install them manually.

Last year, I wrote[1] to let you know that the powerpc architecture would bedropped from zesty as of Feature Freeze.

We are well into Feature Freeze at this point, so an update is overdue. Asof Feature Freeze in February, the status is that powerpc packages are nolonger considered for proposed-migration, and we have discontinued all CDimage builds for powerpc in zesty.

For the moment, uploads continue to be built for powerpc in Launchpad, andpackages are still published in the archive. You should expect both to bediscontinued before the 17.04 release.

Thanks,-- Steve Langasek Give me a lever long enough and a Free OSDebian Developer to set it on, and I can move the world.Ubuntu Developer http://www.debian.org/slangasek at ubuntu.com vorlon at debian.org